【EASY-TO- READ】: White or Black Dial with 12 & 24 Hour Markers . Case Diameter:28mm 【PERFECT FOR NURSES AND MEDICAL PROFESSIONALS】: 3-Hand Quartz Japanese Movement with Highly Visible White Second Hand on Black Dial or Black Second Hand on White Dial Makes Taking Accurate Pulse Readings a Breeze 【COMFORT & DURABILITY 】: Easy to Clean, High Quality, Soft and Comfortable100% Silicone Band and 【Waterproof 】Up To 30M(99ft).【MULTIPLE COLOR OPTIONS】: Available in a Variety of Dial Colors and Band Colors: Black Silicone, White Silicone, Pink Silicone, Teal Silicone, Blue Silicone and Navy Blue Silicone 【100% SATISFACTION GUARANTEE】: We are sure that you are going to love your new TICCI watch, but if for some reason you are not satisfied within 30 days of purchase, we will send you your choice of a 100% refund or replacement. Additionally, you will also receive our 1- year manufacturer's warranty(【Free Replacement】).. Please feel free to contact us with any issues that you may have and we will make it right. 【NOTE】There is a small white plastic stopper on the watch crown(button) to save battery, so when you get the watch, please pull the small stopper off and then push the crown in, then the watch can work.